"Toxicology reports found the champagne contained 1,000 times the normal dose of ecstasy, so much that the beverage had turned purple, according to the Daily Beast. Police do not believe the drinkers were aware of the drug or had added it themselves".
Clearly a case of intentional contamination. Perhaps the bottles were spiked as a means to ship the drug and then were inadvertently sold?
https://www.insider.com/luxury-moet-champagne-spiked-with-ecstasy-kills-man-12-poisoned-2022-3
Man dies and 12 people are taken ill after drinking a $480 bottle of champagne spiked with ecstasy
Bethany Dawson Mar 6, 2022, 11:46 AM
A man has died and 12 became ill in Germany and The Netherlands after drinking a bottle of luxury champagne laced with ecstasy.